My tomcat based REST API application is not able to process request due to
above mentioned error. I have tried following things so far :
1. checking if all the jar files are available or not
2. Checking permissions on all files present in tomcat/webapp/ directory
3. firewall rules
4. Hbase is availabe or not
but then also getting following exception. I am using CDH 5.3.1 which
contains HBase 0.98.6. Does anyone know how to resolve this issue?
2015-03-03 05:09:02 privateLog [ERROR]
java.lang.reflect.InvocationTargetException
org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:413)
org.apache.hadoop.hbase.client.HConnectionManager.createConnection(HConnectionManager.java:306)
com.amazon.dao.MyDAO.<clinit>(SensorDataDAO.java:78)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:526)
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:958)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:911)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
java.util.concurrent.FutureTask.run(FutureTask.java:166)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
java.lang.Thread.run(Thread.java:724)
com.amazon.dao.MyDAO <clinit>
Code which tries to establish connection is as follows:
public class MyDAO {
protected static HConnection connection;
static {
Configuration conf = HBaseConfiguration.create();
conf.addResource("hbase-site.xml");
connection = HConnectionManager.createConnection(conf);
// connection object is still null at this point
try {
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
Regards,
Chandrash3khar Kotekar
Mobile - +91 8600011455
